PSY290H5 Chapter Notes - Chapter 2: Cerebrospinal Fluid, Thrombosis, Embolism
Document Summary
Neuraxis dividing line; splits into left and right. The bone is enclosing the entire central nervous system. In a baby, you can feel pulsations occurring in the head because the bone has not configured. Prior to 18 months, brain damage can be very dangerous. Neurons are not able to regenerate so we need this extra protection. The spine is broken up into various divisions. Giving your brain cells sugar so they can function. Artery takes oxygenated blood to the rest of the body. Carotid arteries - from the side of the neck. Vertebral arteries from the back of the head. Subarachnoid space space underneath the arachnoid layer. Veins take blood back to the heart to get oxygenated. Dura mater and pia mater cover the nerves. Cerebrospinal fluid contains lots of nutrients and is circulating within the ventricles and the subarachnoid space. Brain is relying on nutrients being pumped in by the heart.
